Semicolon separated parameters for Mixins

[harm....@gmail.com]

I'm trying to define a mixin that uses semicolons to separate parameters; however, I'm having no luck.  Below is the contents of test.less file:

@myBorder: "solid 1px black";

.myContainer(@border; @color) {

    border: @border;

}

.myDiv {

    .myContainer(@myBorder; "red");

}

When I use the command line to try to compile the file, I get:

C:\MSBuildFiles>dotless.Compiler.exe test.less

[Compile]

C:\MSBuildFiles\test.less -> C:\MSBuildFiles\test.css

Expected ')' but found ' ' on line 4 in file 'C:\MSBuildFiles\test.less':

  [3]:

  [4]: .myContainer(@border; @color) {

       --------------------^

  [5]:     border: @border;

[Done - Failed]

On the documentation at http://lesscss.org/, it mentions the ability to define mixins that have parameters separated by semicolons.  

Mixins With Multiple Parameters

Parameters are either semicolon or comma separated. It is recommended to use semicolon. The symbol comma has double meaning: it can be interpreted either as a mixin parameters separator or css list separator.

Using comma as mixin separator makes it impossible to create comma separated lists as an argument. On the other hand, if the compiler sees at least one semicolon inside mixin call or declaration, it assumes that arguments are separated by semicolons and all commas belong to css lists:

• two arguments and each contains comma separated list: .name(1, 2, 3; something, else),
  
• three arguments and each contains one number: .name(1, 2, 3),
  
• use dummy semicolon to create mixin call with one argument containing comma separated css list:.name(1, 2, 3;),
  
• comma separated default value: .name(@param1: red, blue;).
  

Is this supported in 1.3.1.0?

[Luke Page]

No, it was introduced in less.js 1.3.2

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